Book excerpt: An Odyssey with Animals is the culmination of a veterinarian and scientist's years spent negotiating the divide between animal welfare and biomedical research. Drawing on the disciplines of philosophy, history, ethics, biology, and animal behavior, Morrison crafts a multi-faceted argument in favor of using animals in research. The result is a thought-provoking, intelligent and fair-minded discussion of an incredibly charged subject--of the past and present of animals' relationships with humans, and how and why we should be able to use them as we do.